Tractor



Aug., 3 1926 N. M. ANDERSON l TRACTOR il ed May 5l 1921 .5 sheets-sheet2 Aug p @126 N. M. ANDERSCN TRACTOR Filed'May 31 1921' 5 sheets-sheet sjme/o? 4) rn 7N. @JM/Hh,

w52 mad Aug. 3 1926,

A N. M. ANDERSON TRACTOR Filed May 31 5 Sheets-Sheen 4 nml meeuw@if/'hess N. M. ANDERSON TRACTOR Filed May be understoodvtliat l, do not"intendl to 4Patented ug. 3, 1926.

' UNITED STATES PATENT OFFICE.

l NEWTON M. ANDERSON, OF BEDFORD,

SAY J.' 'UNDEBWOOD Application led May 31,

`features of construction .'Wliich adapt the machine to theaccomplishment'of the purposesffor which it is intendechand Whichconstitute.improvements in the construction of such machines. My noveltractor is of a,

i type havingxaL-frame mounted on two traction Wheels and adapted to be'secured to the front ofthe cultivator or other implement or vehicledrawn by` it, the Wheels being arranged to be either simultaneously orindey i pendently driven by a motor mounted on thel frame to propel andsteer the niachine,-an -arrangementywhich enables the machine to Ibeturned on ashort radius and very easily. "An important feature of my.invention re-v lates to the various combinations and subf- 30combinations of cooperating parts making up the mechanism for thusdriving and steering' the machine, more particularly the 'memberslconcerned. inconnecting and disconnecting one or both ot the drivingWheels '35"and the engine, asswill be more'fully-expl'ained inthe'description hereinafter` given.l "Other features ofmy invention relateto the telescoping and adjustable controlling means through which' thedriving and steering "10 mechanisms-are controlled,y and still othernovel features ot' construction incidental 'to-1 those mentioned will beapparent from the` 'description' given.

In the appended claims in: whiclil have pointed out the'essentialfeatures of my iny vention and distinguished .it. from pre- 1 viousmachines so far as -knou'nffto me,

my invention to the precise construction dey scribed in thespecifieatiom'and that I -ini and substance ci: my invention.` It willfuir* of Fig. el,

yon the line .7-7 of Fig. 6 gand Figs. 8 and 9 are transverse detailsections on the lines j chine herein fde'scrihedcanu' shown in theIN'DIAINTA, ASSIGNOR, BY MESNE ASSIGNMENTS, y -OF ONE-HALF T0 OMERBOWERS, 0F BEDFORD,

INDIANA, AND ONE-HALF T0 LIND- TRACTOR i921. segiai'irorua'ii.

ther be understood that certain groups of 155 part-s Vandsub-combinations of elements herein described, with suitablemodification and adaptation, may be capable of eneral use in machinesandapparatus inten ed for other purposes and differing in their generalorganization and construction from the present machine, and that Itherefore. do not. intend to limitthe claims to such groups andsubcombinations of elements to use in my novel tractor machine only.

: Gf the accompanying drawings forming p art of this specification,Figure 1 is a plan viewKot' my novel tractor; Fig. 2 is a side elevationof the same, the traction Wheel at the near side 'of the machine beingomitted; Fig. 3 is a longitudinal section of a portion of the machine,on the line 3-3 of Fig. 1; Fig. et is a top plan view of the steeringwheel and post and part of the control lever andy connections associatedtherewith; Fig. 5 is a'-vertical section on the line 5-5 lgdlrfing inthe direction of the arrow; Fig., isga side elevation of one of theclutches fdr connecting the traction Wheels to the ,fmotor, the lorakeldrum 'associated therewith being omitted; Fig. Y is a section 8-8 and9-9, respectivelyott Fig. The same reference characters indicate .thesame parts in all the figures of the drawing.

It may first be explained lthat my 1nvention is embodied,"inthe`farticular ma- W drawings,.in a tractor engine, oru tractor proper,andan associated and detachable ridingvframe whichwhen connected to thetractor converts it into a one-passenger vehicle which can be drivenanywhere and, is capable of limited use for carrying light loads',pulling a two-wheeled truck, or other trai-ler, and similar purposes.Proceeding fnotv to a detailed description of the mal chine, the mainframe of the tractor proper it .Willi limit may conveniently be formedofside bars 1-1' fofcliannel iron, connected by a front bar 25nd"ai'earliar 3 riveted thereto, and by intermediate cross and longitudinalmem berssecured thereto and arranged to support the .motor A and theassociated and connected parts. through which the two traction wheelsB-B, upon which the trameis iroximatel r to the line of the rear framebar 3. y. The two traction wheels B-B are rotatably mounted upon theopposite, outer ends of an axle 4 which is secured to the side framebars 1-1 and are both equipped with internal gears 5 by means of whichthey may be either simultaneously or independently.

driven, as hereinafter described.

Upon' the crank shaft 6 of the motor is mounted a friction driving wheel7, the hub of which makes splined connection with such shaft and isformed with a grooved shifter portion 8, operated by a rock shaft 9journaled in the side frame bars and requipped with a forked rock arm 10arranged to engage the groove of the Shifter, the rock shaft beingprovided with a crank 11 operated through 'a connecting rod 11l by ahand lever 12 which may be: set to any desired position of adjustment bya pivoted notched ocking bar 13, to cause the rock shaft to be turnedand, the drive wheel set longitudinally ofthe shaft at any desiredposition within its'ran e of adjustment. The periphery vcit this drivewheel 7 is formed of a materialadapted to make frictional engagementwith the inner faces of onev or the other of two friction disks, marked14 and 15, which are rigidi secured to a crossshaft 16 rotatably an alsoslidably mounted in suitable bearings fixed to the side frame bars 1-1Iof the machine. This shaft 16 is adapted to be shifted longitudinallythrough means which will later-be described to bring one or the otherofthe disks 14 and 15 into engagement with the friction wheel 7 and theother disk out of engagement, or to set the shaft in an intermedlateposition in which both disks will be disengaged.

The mechanism'through which power is a imparted from the shaft 16 tothetraction wheel B-B may now be described. Rotatably mounted insuitable bearings on the frame of the .machine are shaft sections orvmembers 17 -and 18 of what may be regarded as a double or divided.driving axle, to the outer ends of which are respectively secured smallgears or pinions, marked 19 and 20 arranged to respectively' engage thetwo internal gears 15J on the driving wheels of the machine. The innerends of the shaft sections 17 and 13 rotatably meet eachother, androtatably mounted upon these meeting ends is a gearwhoel 21 meshing witha small pinion noniotatably mounted on the` shaft 1li above mentioned.

This shaft 16, it may here he explained, is provided with a pulley 16athrough which the power ol the motor may be applied to any of thepurposes for which a stationary engine may be used, and in order'thatthe parts driven through the pinion 22 may be Wholly disconnected whenthe motor is used in such manner, such pinion has splined connectionwith the shaft and is arranged to be shifted by suitable operatingconnections into and-out of position of engagement with the gear wheel21, in the resent instance the pinion being formed wit a grooved hub 91engaged by a reciprocating shifter 92 which is actuated by a crankformed by the upturned inner 'end of a rock shaft 93 eX- tendinglongitudinally of the machine, the outer end being equipped with anoperating handle 94. The pinion is of slightly greater width than thegear wheel, to permit it when in engaging position,-to remain incomplete meshed engagement throughout the slight longitudinal movementof the shaft 16 from one extreme position of the latter to the other. f

Formed integral with or secured to oppof site sides of the gear 21aretwo clutch drums 23-23, which are counterparts of each other and areformed with internal faces Aadapted to be engaged by incompletelycircular expanding clutch rings, formed of stii resilient metah' Sincethe parts associated with those two drums are identical, except fortheir reversal in arrangement, a description of the parts connected withthe drum 23 will serve Ifor the parts associated with the drum 23, whichlatter parts, so far as illustrated in the drawings, are indicated bythe addition of the exponent a tothe number used to designate the partsto be particularly described. The clutch ring 24, arranged to cooperatewith the drum 23, equidistant from its ends is provided with a socketsegment 25 secured to it and arranged to engage one arm of a frame 26which is rigidly secured to the shaft section 17, the free ends of' suchring being con nected by a toggle consisting of the links 27 and 28, andone of the links, as 28, being made sectional and 'having anintermediate section formed with right 'and left screw threads engagingthe two end sections for, purposes of adjustment. The knuckle of thetoggle is engaged by a' lever 29one end ofvwhich is pivoted to the frame26 and the other end of which is yieldingly tensioned by a compressionspring 30 interposed between such end and a portion of said frame insu'ch manner that the spring tends to straighten the toggle,v ande'ngagethe clutch ring 24 with the drum 23. AS before stated,` the frame 26yisrigidly, secured to the shaft section 17, and the other correspondingframe 26 is similarly secured to the shaft section 18, so that throughthoparts thus far described, and when traveliigixi-mv a straight path,the two traction wheels are driving connections of one traction wheel orthe other, so that the application-,of power by the motor to theconnected side only will cause the machine to turn toward thedisconnected side, I have provided duplicate retarding-or brakemechanism. respectively connected with the toggles of the brake ringsjust described. nected with the toggle links 27 and 28, there is looselymounted upon the shaft section 17 "a friction Wheel or brake drum 31 theperiphery of which is adapted to be engaged through manually operableconnections by a brake strap 32 so anchored or connected as to beincapable of rotation. This brake drum 31 carries a laterally extendingpin 33 to which is pivoted one end of a link 34 whose opposite end isforked and slotted to engage vthe hinge pin connecting the toggle meintrs. I`When the two brake straps 32 and 32a are both free from therespective drums 31 and 31, such drums will be drawn around in unisonwith the connected clutch members 24 and23, and 24" and 23, withoutappreciable resistance, by means of the .toggles and connecting linksSli- 34", the

link 34 assuming the position shown inFig. 3 wbenthe connections withthe motor are such as torotk-ate the gear 21 in the direction indicatedby the arrow and impel the machine forwardly. `When, however, throughoperating -connections which will later be described, one of the brakestraps, the strap 32, for example, is caused to engage its drum 31, thedrag of the drum upon the connecting link 34 will pull upon the togglelinks, overcoming the pressure of the spring 30, and canse slippageoff/the clutch ring 24 against the inner face ofthe clutch drum 23. lheslotted engagement ofI the link 34 with 1 .thejhingeipin ofthe toggle,it will be noted,

i permitssucl llink to ,be dragged to a position dpp'osit: that shown inFig. 3, (the lost moti-pn' in `the machine being described 'amountmg toabout one-eighth of a revoluti'or and when the parts are rotating suchlink will draw somewhat more strongly upon the leading brake shoe,thatis, the one to thc left in said figure,-whereas, when the machine isbeing driven backward, the other shoe `will be the leading one and theposition and action of thelinkage ir. question will be reversed. Thisangularity in the directionofpull, while not essential, is conducive toan etlectlvc release of the'clutch members. 'l'he result of tighteningthe brake strap upon the brake drum 31, therefore, is both" to exert adirect braking eifect on the traetion'wheel B,'\vl1ich through the frame36 and toggle linkage is 'positively connected fn'ithsuch drum, andalso, through the pull of the toggle members the free ends of.

Describing the one con-` the clutch ring 24, cause a slippage ofthe vclutch ring 24, though not a completeiy free release ot such ring fromthe clutch drum 23. The traction or driving wheel to which the partsmentioned are connected is therefore retarded and steadied and thedriving wheel on theopposite side of the machine, driven under 'fullpower of the motor, is caused toswing about it andn this man ner,through the a plication of the motive power to one or tiie other .ofthedriving wheels, the tractor may bereasily and effecy tively guided,Without the very considerable physical exertion required to control thesteering mechanism usually employed in ma chines of this kind.

The rear end of the frame ofthe tractor is provided with a shortswinging tongue 35 which, a shown, may conveniently consist of a woodenbeam 35 to which are secured upper and lower fork members, markedrespectively 37 and 38, which at their ends are pivotally connected withthe frame on a vertical axis, by means ofa king bolt rigidly secured' tothe fork members and journalcd in a lower bearing formed in a cross-bar39 adjacent the rear end of the frame and an upper bearing in a framebracket 4() secured to said cross-bar and strengthened by suitablebraces. The rear end of the tongue is provided on its ur ler side with arocking attaching device conf sisting of a bar 41 formed with upturnedlugs 42 at its ends pivoted to the depending lugs of a bar 43 bolted tothe tongue.,

The supplementary, detachable riding frame before mentioned consists ofan axle and connected frame members mounted on a pair of wheels andprovidediwith a seat for the driver of the machine;` This .riding frameis constructed with an arched bar 44, clamped at its opposite ends tothe axle and to diagonal brace bars 45 which extend from near tlie endsof the axle towards each other andare secured to the forward end of thereach 46, and the tongue of the tractor is supported on this arched barby a bolt passingthrough the bar 41 of the supporting del mentand-construction of the parts is such that the bar 4l will lrest uponand may be bolted to the rontframe barof tractors of standardconstruction, the' longitudinal pivoting 'of such bar :providing for asideavise rocking'or oscillation of the cultivator in passing overune'ven ground.

lThe bars 45l are" bent to extend parallel with each other forwardly` oi`the end 4of thc reach 46, and are bolted to depending bars 47 which aresecured at their upper ends to the lower fork members 33 ofthe tractortongue, and the 'lower ends of the bars 47 are connected to diagonalbrace bars 43 extending upwardly and forwardly and cen-pl nected bypivot bolts to the forwardiportion of` the tractor frame; When theriding frame is detached and the tractor secured to a cultivator orother machine the bars 47.

and 48 maybe folded. UP towards each other under the machine and securedby bolts, or

if preferred may be entirely disconnected.

The mechanism through which the shaft 16 is shifted longitudinally tocause. it to be rotated in one direction by the friction disk 14, or in`the other direction by the disk 15, or be disconnected from the-motor inneutral position, for the purpose of driving the machine forwardly, orrearwardlyxor dis# connecting the [motor from the driv-v ing Wheelsentirely, is controlled by a reversing and control crank mounted uponthe reai" of the steering wheel. The steering Wheel, lWhen turned in onedirection from a neutral,`intermediate position, is arranged to tightenthe brake strap .62, and When turned in the other to tighten' the lbrakestrap 32, to'brake the connected driving Wheel and simultaneouslydisconnect it from the motor and thus cause the` tractor to turn towardsthe side so-'afl"cctedl Both the re versing crank and the steering Wheelare adjustably connected with thc parts open ated by them by means olf'extensible, flexible connections, so that they may. bebrought intoconvenient position for operation by the driver from the seat of ,theparticular `machine to which the motor is=attacbed,

bracket/ secured to the frame bracket, 40

before mentioned. The member 54,Wh`ich ormsa low'erterminal section ofthe steeringwheel mechanism, universally connected -as described to thetelescoping post section of such vmechanism is 'formed with laterallyextending arms 56-56, tothe extremities of pivotedv the upper .ends ofrods 37e-57 which are loosely seated in, the holy.inner ends to theupper and lower ends, re-

4^spectively of the brake straps 32 and 32, intermediate 'their' whichare anchored, length, to a stationary part `of the frame. When thesteering wheel `is turned in a direction vto depress the arm 56, orv56", as the case may be, it is apparent that such arm Alow upper endsof rods [5S-5,8? piv'oted to, the outer ends of levers 90 -j96theselevers being pivoted intermediately and `at their Willact tthrough thetelescoping rod members to, tighten the brake strap on the sideaffected, while on the op osite side the `per rod member Will be ftedidlyl Without affecting the brake strap on that side of the machine. l

Thecontrol lever, marked 59, is secured to tlieirear end 'of a tube 60slidingly received within the tubular inner membei 50 of the steeringWheel post or shaft, and/such tube 60 slidingly engages an approximatelysquare .rod 6,1, the edges of such rod being slightly rounded. rlibefront end of the tube 60 is provided with an inset block GEZ hai# inginternal faces slidingly engaging -tl'ie rod 6l, whereby the rod will becaused to turn with the tube when the control lever handle is turned. Tothe front end of the rod is secured one of the forks of a second uni-Ivers'al joint, similar to and arranged een trally 4Wit-hin the ring 53of the universal joint abovedeseribed, the terminal member till 63 ofthe inner universal coupling being tatabl and non-slidablymounted in thehub othe member 54 of the first-mentioned outer coupling. This terminalmember ia secured. to orintegral with a screw rod 642 which engages ablock 65 pivoted upon the inner end of anirregiilarly shaped rockinglever 66 `which has a horizontal upper'portion 66, a verticalintermediate portion 66"- 66'? connected with an 'intermediatehorizontal portion to provide tor a pivotal mounting, and a lower`horizontal arm 66. The lever` 66 is pivotally mounted on a vertical rod67 secured to the upper and lov;- er members of a three-sided bracketsecured to the tractor frame;

vThe. end ot thelower arm 66 of the lever is pivoted in the slotted endot a shitting member 68 which rotatabl and nonslidably engages the endportion o 3 the shaft 16 outside its bearing in the frame, so that byrotating the control crank to roolptheflever the shaft 16 will beshifted longitudinally in its bearings in the frame to any'positiiondesired. The control thus' attained is extremen ly sensitive, and bvarying e degree ot pressure of the` friction ywher.;v 7 upon thedriving disks 1471er 15, and permitting a greater or less degree ofslippage, any d'e-I sired portion ofthe maximum power of the engine canbe transmitted. Furthermore, in

descending a hill,the transmissi.v n is shifted i imi adapted to receivestuds 72 projecting from a ring surrounding the outer tube 51 of thetelescoping shaft members.

in order to loclrthe riding frame against any swingingjmovement ,uponthe vertical axis 'upon which the tongue 35 is mounted, and thus causethe machine to maintain a straight course except when the steering wheelis rotated to malte a turn, I have promediately pivoted to a bracket 77secured to the upper forks 37 of the tongue; and at its forward end islpivoted to a plunger 78 which is slidingly seated in ,the hollow ortubular upper end of the king bolt 80, the boltflbeing slotted in thepath of the lever to permit such pivotal' connection. The top of theplunger has a disk-shaped, rounded crown adapted to be depressed by oneor the other end of a laterally extending rounded block or cross-bar 79secured to the bottom of the Jforward member of the outer universaljoint before mentioned. By turning the steering wheel in eitherdirection, therefore, the latching pin 7 4; is lifted out of engagementwith the oriice in the segment 73, but whenever travel in a straightpath is resumed the orifice. will come .into alignment with the pin andthe latter will drop into engagement again. While the particularconstruction of the motor used as a source of power for my tractor formsno part of my present invention it should be stated that it is providedwith an adjustable speed governor connected with the throttle andoperating to maintain a practically constant motor speed under anyvariation ot' load between ull load and when the engine is running idly.In the interest of simplicity I have made no provision for adjusting thegovernor to vary the speed at which the tractor will be driven byconnections associated with the steering wheel and which may bemanipulated by the driver whilethe machine is in motion, but it isobvious that mechanism for that purpose may be added if desired, andalso connections Vi'or advancing or retarding the spark.

l. ln a tractor having a pair of independently rotatable tractionWheels, a motor, duplicate trains of power-transmitting mechanismconnected to said traction wheels, a4 reversing mechanism intermediatesaid motor and both said trains of power-transmitting a central orificemechanism, a steering wheel having its shaft cooperatively connectedrtoboth said trains of power-.transmittin mechanism and 'arranged todisconnect either-train at'will, and

a control lever having a shaft 'which is journaled concentrically inysaid steering Wheel shaft and is connected-with, saidfreversingmechanism.v

2. In a tractor having a motorand a pair of independently ,rotatabletraction wheels,

the combination ofv steering wheel mechamsmiincluding a lower terminalsectlon journaled in the machine frame andcoope'ratively connected toboth wheels and ar-` ranged to disconnect the drivin means Ifor eitherwheel at will to" staart e machine and also including a post sectionuniversally connected with said lower section vand equipped with asteeringywheel, reversing mechanism intermediate said motor and bothsaid traction wheels, and control mechanism including a terminal memberjournaled'in the lower terminal section of the steering wheel mechanismand connected to said reversing mechanism and also including 'a postsection universally connected with said terminal member of the controlmechanism and equipped with an operating crank'.

, 3. In a tractor havin a. main `frame and driving wheels supportm saidframe, and a laterally swinging supp ementary wheeled frame pivoted tosaid Imain frame, steering mechanism for steering said driving wheels,means for automatically locking said main and supplemental frame in nalalignment, and steering mechanism ing mechanism.

Il. in a tractor, locking and releasing means according to claim Binwhich said main frame is equipped with an orificed segmeans governed bysaid for releasing'said lockment, and a member secured t0nsaid pivotedsupplementary frame is e locking bolt actuated by sai anism'.

5. In a tractor,

uippedy with a steering .'me'chforked beam pivoted to said frame on avertical axis, a sup lementary wheeled frame secured to said cam,steering mechanism 'for steering said driving wheels and including anoscillatory post intersecting the pivotal axis of said beam, said postbeing connected with a cam adjacent the point of indirectlongitudilocking andl releasing means accordingto claim 3 in which saidtersection, a reciprocating'pl'unger mounted coaxially of said pivotalaxis and arranged to cooperate with said cam, a locking bolt mounted insaid beamand connected with said plunger, and an 'oriiced lockingsegment secured to said main frame.

7. A tractor mechanism according to claim l6 in which said forked beamis secured to a king bolt pivoted inthe main frame, and saidreciprocating plunger is mounted in an axial bore at the top of suchking bolt.

8. In a tractor or other machine, clutch mechanism comprising a drivingdrum having an internal cylindrical clutching face, a spring-tensionedexpanding clutch member secured to a shaft to 'be driven, a toggleoperable to contract said expanding clutch member, a brake memberrotatably mounted coneentrically of said expanding clutch member andcooperatively connected Withsaid toggle, a cooperating brake member an#chored to the frame of the machine, and

.claim 8 in which said expanding clutch Y ranged to engage the opposite`branches of lmeans for engaging said brake members.

`9.5A clutch mechanism according to claim 8v in which said firstmentioned brake mem ber is a brake drum and said drum is connected by alink with the knuckle of said v toggle. 30

- claim 8 in which said rst mentioned brake l0. A clutch mechanismaccording to .member is abrake drum and said drum is connected by alinkv with theknuckle of said toggle, said' link having a slottedattachment permitting a limited degree of lost movement in eitherdirection.

. 11. A clutch mechanism according to member is intermediately anchoredto a frame secured to `the driven shaft and said toggle is mounted ,onsaid frame and is arsuch member.

12. A clutch mechanism according to claim 8 in which said expandingclutch ymember is intermediately anchored to a frame secured to thedriven' shaft and said toggle is mounted on said frame and is arrangedto engage the opposite branches of.

such member, and in which also said expanding member is tensioned by aspringstressed lever mounted o n said trame and bearing against theknuckle of said toggle.

13. A clutch according to yclaim 8 in Whiclrsaid shaft isecgnippedwith'a trame and said expandingvciutch member is an open metallic ring,anchored intermediate its ends to said frame. A

14. In a tractor having a motor and a pair of independently rotatabletraction vvheels, the combination of steering Wheel mecha-rnismincluding a hand Wheel and telescoping splined tubular postsections, th'efllowerpost section beingrotati-vely mountedin the ma-"chine frame and being-provided with a h-oIf low universal joint andbeing cooperatively I rst mentioned joint and concentric therel with.

15. In a tractor having a motor andav pair of independently rotatabletraction wheels, the combination of steering wheel mechanism including ahand wheel and telescoping splined post sections, the lower such sectionbeing provided with a universal 'joint and. being cooperativelyconnected with both said. Wheels and arranged to disconnect the drivingmeans for either wheel at Will to steer the machine, transmissionmechanism intermediate the motor and both said traction Wheels, andcontrol mechanism including an operating handle and telescoping splinedpost sections connected to said'transmission mechanism, the lower one ofsaid last inentioned post sections being provided with a universal jointand all ot said post sections being concentrica'lly arranged and saiduni versal joints concentric, and the outer such rjoint being rotatablymounted in the ma chine frame.

16. In a tractor having a pair of independently rotatabledriving Wheels,a motor, a pair of clutch drums driven in unison b v said motor, a pairof cooperating clutch membersrespectively connected with said tractionwheels, a pair of, brake mechanisms respectively connected ,y to saidtraction wheels, eachy mechanism including a brake strap and a braliedrum, said drum heini" connected to said second mentioned clutci member,and means foroperating said brake straps comprising an oscillatablesteering Wheel and post, a pair ,of opposite laterally extending armsvconnected to 'said' post, rods vrespectively connected to the outerends of said arms, and'levers pivoted to said arms and cooperativelyconnected with said brake straps. p y

17. In a tractor having a pairotdndependently rotatabledri-vingWheels,`fa motor, a pair of clutch drums driven inmiiiiison bv saidmotor, a pain-,of .i cooperating clutci members respectively Y"connectedwith said traction Wheels, apairof brake mechanisms respectivelyconnectedrf to said traction Wheels, each mechanismaincluding a brakestrap and a brakefdruin, said drum being connected to one of saidsecond, mentioned clutch members, and means Vfor operating jsfaidbrake'strap's comprising an oscillatable llt) liti

stPering Wheelfand possye pair of, oppositie laterally extending armsconnected to sind post, rods respectively conne-@fed to the outer endsof said arms, and leverslxespectively pvoted at their outer endstb-sad'arms, and" also pivotally connected at their inner ends points tothe epposte' meme@ e Y means for opemng Seial brake straps in T whichseid mds me sectional und 'eesccp-- ing, whereby upon the depression ofone arm the connected rod W1K be depressed .and

me the associated brake Simp te be igenee. im@ the Sect-iene ofthe @theymii will herkrsepamyed idly.

